JPS639799B2 - - Google Patents

Info

Publication number
JPS639799B2
JPS639799B2 JP17925181A JP17925181A JPS639799B2 JP S639799 B2 JPS639799 B2 JP S639799B2 JP 17925181 A JP17925181 A JP 17925181A JP 17925181 A JP17925181 A JP 17925181A JP S639799 B2 JPS639799 B2 JP S639799B2
Authority
JP
Japan
Prior art keywords
polypropylene
diaphragm
speaker
polyurethane
curve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP17925181A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5880998A (ja
Inventor
Kosaku Momotake
Mamoru Ishida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Priority to JP17925181A priority Critical patent/JPS5880998A/ja
Publication of JPS5880998A publication Critical patent/JPS5880998A/ja
Publication of JPS639799B2 publication Critical patent/JPS639799B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
JP17925181A 1981-11-09 1981-11-09 スピ−カ用振動板 Granted JPS5880998A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17925181A JPS5880998A (ja) 1981-11-09 1981-11-09 スピ−カ用振動板

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17925181A JPS5880998A (ja) 1981-11-09 1981-11-09 スピ−カ用振動板

Publications (2)

Publication Number Publication Date
JPS5880998A JPS5880998A (ja) 1983-05-16
JPS639799B2 true JPS639799B2 (fa) 1988-03-02

Family

ID=16062574

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17925181A Granted JPS5880998A (ja) 1981-11-09 1981-11-09 スピ−カ用振動板

Country Status (1)

Country Link
JP (1) JPS5880998A (fa)

Also Published As

Publication number Publication date
JPS5880998A (ja) 1983-05-16

Similar Documents

Publication Publication Date Title
CN111935602B (zh) 一种发声装置的振膜及其制备方法、发声装置
EP1450580B1 (en) Manufacturing methods of Speaker Diaphragms
US4404315A (en) Molding compositions and diaphragms, arm pipes and head shells molded therefrom
US3980841A (en) Speaker edge
JPS639799B2 (fa)
US1213051A (en) Method of making diaphragms.
JP3606492B2 (ja) 電気音響変換器用振動板
JP2506498Y2 (ja) 電気音響変換器用振動板
JPS586440B2 (ja) オンキヨウキキヨウシンドウバン
JPS6359640B2 (fa)
JPS61114696A (ja) スピ−カ用振動板
KR100254889B1 (ko) 스피커용 진동판 및 그 제조방법
JPS6359639B2 (fa)
JPS58111600A (ja) 音響振動板
JPH09107595A (ja) 電気音響変換器用振動板
JPS6356759B2 (fa)
JPH03286700A (ja) スピーカ用振動板
JP3123279B2 (ja) スピーカ用振動板
JPS58107797A (ja) スピ−カ用振動板
JPH0241960B2 (fa)
JPH0614389A (ja) スピーカ用振動板
JPS5896492A (ja) 電気音響変換器用振動板
JPS5857958B2 (ja) 音響機器用振動板
JPS5828960B2 (ja) スピ−カ−用振動板
JPS5875398A (ja) スピ−カ用振動板